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| 0000104889-25-000033.txt | 2025-04-30 08:32:31 | |
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| a2025q18-kexhibit991.htm | 355344 | 2025-04-30 08:32:31 |
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| ghc-20250430.htm | 32269 | 2025-04-30 08:32:31 |
| ghc-20250430.xsd | 1783 | 2025-04-30 08:32:31 |
| ghc-20250430_htm.xml | 2729 | 2025-04-30 08:32:31 |
| ghc-20250430_lab.xml | 21885 | 2025-04-30 08:32:31 |
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| Show.js | 1084 | 2025-04-30 08:32:31 |